Home / 13,442.73-20,174.58-9,311.73

Finding the Fourth Proportional to 13,442.73, 20,174.58 and 9,311.73

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Solution

The fourth proportional to 13,442.73, 20,174.58 and 9,311.73 is: 13,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.73 : 20,174.58 = 9,311.73 : x
  2. Step 2: Convert to fraction form
    13,442.73/20,174.58 = 9,311.73/x
  3. Step 3: Cross multiply
    13,442.73x = 20,174.58 × 9,311.73
  4. Step 4: Simplify right side
    13,442.73x = 187,860,241.82
  5. Step 5: Solve for x
    x = 187,860,241.82/13,442.73
  6. Step 6: Final answer
    x = 13,974.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.